MAX5971AETI+T Maxim Integrated Products, MAX5971AETI+T Datasheet - Page 2

• Manufacturer Part Number: MAX5971AETI+T
• Description: IC CTRLR PD IEEE 802.3AF 28WQFN
• Manufacturer: Maxim Integrated Products
• Type: Power Over Ethernet Controller (PoE)r

Specifications of MAX5971AETI+T

• Applications: Remote Peripherals (Industrial Controls, Cameras, Data Access)
• Internal Switch(s): Yes
• Current Limit: Adjustable
• Voltage - Supply: 32 V ~ 60 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Single-Port, 40W, IEEE 802.3af/802.3at PSE
Controller with Integrated MOSFET
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to V
AGND, DET, LED ..................................................-0.3V to +80V
OUT ......................................................-0.3V to (V
OUTP .......................................................-6V to (V
V EE_DIG ...............................................................-0.3V to +0.3V
OSC .........................................................................-0.3V to +6V
EN, PWMEN, MIDSPAN, LEGACY, ILIM1, ILIM2 ....-0.3V to +4V
Maximum Current Into LED ................................................40mA
Maximum Current Into OUT ......................... Internally regulated
Continuous Power Dissipation (T
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
V
2
AGND
POWER SUPPLIES
Operating Voltage Range
Supply Current
CURRENT LIMIT
Current Limit
Foldback Initial OUT Voltage
Foldback Final OUT Voltage
Minimum Foldback Current Limit
Threshold
AGND
28-Pin TQFN (derate 34.5mW/NC above +70NC) ......2758mW
______________________________________________________________________________________
- V
- V
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
PARAMETER
EE
EE
= +54V, T
= 32V to 60V, T
A
EE
= +25NC. Currents are positive when entering the pin and negative otherwise.) (Note 2)
, unless otherwise noted.)
A
= -40NC to +85NC, all voltages are referenced to V
A
= +70NC)
V
SYMBOL
V
FLBK_END
V
FLBK_ST
I
TH_FB
AGND
I
I
LIM
EE
AGND
AGND
V
V
measured at AGND in power mode
Maximum
I
allowed
during
current-limit
conditions,
V
(Note 3)
V
limit starts folding back
V
limit reaches I
V
LOAD
AGND
OUT
OUT
AGND
AGND
OUT
+ 0.3V)
+ 0.3V)
= V
= 0V
= V
- V
- V
- V
EE
AGND
EE
OUT
OUT
, all logic inputs unconnected,
TH_FB
CONDITIONS
Class 0, 1, 2, 3
Class 4
Class 5 if ILIM1 = V
= unconnected
Class 5 if ILIM1 = uncon-
nected, ILIM2 = V
Class 5 if ILIM1 = V
= V
below which the current
below which the current
EE
Package Thermal Resistance (Note 1)
Operating Temperature Range .......................... -40NC to +85NC
Storage Temperature Range ............................ -65NC to +150NC
Junction Temperature .....................................................+150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
B JA ...............................................................................29NC/W
B JC ................................................................................2NC/W
EE
EE
EE
EE
, unless otherwise noted. Typical values are at
, ILIM2
, ILIM2
MIN
400
684
807
855
902
32
TYP
420
720
850
900
950
166
2.5
27
10
MAX
441
756
893
945
998
60
4
UNITS
mA
mA
mA
V
V
V